Design of 1.8V 1GHz 0.18μm CMOS LNA for GPS

Author

Liu, Huazhu ; He, Qianhua

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

The low noise amplifier is the key part for front-end device of the receiver in the GPS. A 1.8 V 0.18 mum CMOS LNA for GPS applications has been designed. Two kinds of low noise amplifier (LNA) for single-end cascade structure and differential cascade structure respectively are presented in this paper. Cadence software is used to optimize the two circuits. It provides a series of good results in Noise figure, Linearity and Power dissipation. With a 1.8 V supply, the two LNAs achieve power gains of 19.5 dB and 23 dB, noise figures of 1.9 dB and 1.95 dB. Besides, the input PldB is -19.05 dBm and -14.65 dBm.

Keywords

CMOS integrated circuits; Global Positioning System; low noise amplifiers; receivers; CMOS; Cadence software; GPS; differential cascade structure; frequency 1 GHz; low noise amplifier; noise figure; power dissipation; receiver; single-end cascade structure; size 0.18 mum; voltage 1.8 V; CMOS technology; Capacitors; Consumer electronics; Global Positioning System; Impedance; Inductors; Low-frequency noise; Low-noise amplifiers; Noise figure; Power dissipation;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4244-2107-7

Electronic_ISBN

978-1-4244-2108-4

Type

conf

DOI

10.1109/WiCom.2008.550

Filename

4678458